-diff --git a/configure.in b/configure.in
-index 5850bbf..7604bb8 100644
---- a/configure.in
-+++ b/configure.in
-@@ -3367,6 +3367,9 @@ unexpand_shvar exec_prefix prefix
- if test ${RUBY_LIB_VERSION_STYLE+set}; then
- AC_DEFINE_UNQUOTED(RUBY_LIB_VERSION_STYLE, $RUBY_LIB_VERSION_STYLE !<verconf>!)
- else
-+ if test "x${ruby_version}" = 'x'; then
-+ AC_DEFINE(RUBY_LIB_VERSION_BLANK, 1)
-+ fi
- AC_DEFINE_UNQUOTED(RUBY_LIB_VERSION, [$RUBY_LIB_VERSION] !<verconf>!)
+diff --git a/configure.ac b/configure.ac
+index 999e2d6d5d..11fc237552 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -3710,7 +3710,8 @@ AS_CASE(["$ruby_version_dir_name"],
+ ruby_version_dir=/'${ruby_version_dir_name}'
+
+ if test -z "${ruby_version_dir_name}"; then
+- AC_MSG_ERROR([No ruby version, No place for bundled libraries])
++ unset ruby_version_dir
++ AC_DEFINE(RUBY_LIB_VERSION_BLANK, 1)